CVE-2021-23682 : Vulnerability Insights and Analysis

This CVE-2021-23682 article provides insights into a Prototype Pollution vulnerability affecting litespeed.js and appwrite/server-ce containers.

Understanding CVE-2021-23682

This section delves into the details of the CVE-2021-23682 vulnerability.

What is CVE-2021-23682?

CVE-2021-23682 is a Prototype Pollution vulnerability impacting litespeed.js before version 0.3.12 and appwrite/server-ce versions 0.12.0 to 0.12.2, and before 0.11.1. It arises from improper sanitization in parsing the query string.

The Impact of CVE-2021-23682

With a CVSS base score of 7.3 (High), this vulnerability allows attackers to manipulate prototype properties leading to potential code execution or data tampering.

Technical Details of CVE-2021-23682

This section provides technical specifics of the CVE-2021-23682 vulnerability.

Vulnerability Description

The flaw occurs when parsing query strings in the getJsonFromUrl function, allowing unsanitized key setting which facilitates Prototype Pollution.

Affected Systems and Versions

litespeed.js: Versions prior to 0.3.12
appwrite/server-ce: Versions 0.12.0 to 0.12.2, and before 0.11.1

Exploitation Mechanism

The vulnerability can be exploited remotely with low attack complexity via the network, requiring no privileges.

Mitigation and Prevention

In this section, you'll find essential steps to mitigate the CVE-2021-23682 vulnerability.

Immediate Steps to Take

Developers should update litespeed.js to version 0.3.12 and appwrite/server-ce to versions 0.12.2 or later to patch the vulnerability.

Long-Term Security Practices

Maintain a secure development lifecycle, implement code reviews, and use secure coding practices to prevent such vulnerabilities.

Patching and Updates

Regularly check for security updates from the software vendors and apply patches promptly to eliminate known vulnerabilities.